Which is why the more serious consequences a law has the harder it is to change it and the more people need to sign off on it. There is stuff that needs simple majorities, stuff that is in the constitution and requires a super majority, stuff that can't be changed short of abolishing the current state and stuff that can't be changed at all, because it is just an assertion that is independently on anyone asserting it.
This is kind of a "solved*" thing in theory, not so much in practice of course.
*solved meaning we have a proper process established